Home / 389,122.02-537,071.88-245,790.90

Finding the Fourth Proportional to 389,122.02, 537,071.88 and 245,790.90

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Solution

The fourth proportional to 389,122.02, 537,071.88 and 245,790.90 is: 339,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,122.02 : 537,071.88 = 245,790.90 : x
  2. Step 2: Convert to fraction form
    389,122.02/537,071.88 = 245,790.90/x
  3. Step 3: Cross multiply
    389,122.02x = 537,071.88 × 245,790.90
  4. Step 4: Simplify right side
    389,122.02x = 132,007,380,749.89
  5. Step 5: Solve for x
    x = 132,007,380,749.89/389,122.02
  6. Step 6: Final answer
    x = 339,244.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.