Home / 692,138.09-1,038,200.65-218,823.50

Finding the Fourth Proportional to 692,138.09, 1,038,200.65 and 218,823.50

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Solution

The fourth proportional to 692,138.09, 1,038,200.65 and 218,823.50 is: 328,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,138.09 : 1,038,200.65 = 218,823.50 : x
  2. Step 2: Convert to fraction form
    692,138.09/1,038,200.65 = 218,823.50/x
  3. Step 3: Cross multiply
    692,138.09x = 1,038,200.65 × 218,823.50
  4. Step 4: Simplify right side
    692,138.09x = 227,182,701,983.72
  5. Step 5: Solve for x
    x = 227,182,701,983.72/692,138.09
  6. Step 6: Final answer
    x = 328,233.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.