Home / 402,128.55-602,274.18-191,914.11

Finding the Fourth Proportional to 402,128.55, 602,274.18 and 191,914.11

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Solution

The fourth proportional to 402,128.55, 602,274.18 and 191,914.11 is: 287,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,128.55 : 602,274.18 = 191,914.11 : x
  2. Step 2: Convert to fraction form
    402,128.55/602,274.18 = 191,914.11/x
  3. Step 3: Cross multiply
    402,128.55x = 602,274.18 × 191,914.11
  4. Step 4: Simplify right side
    402,128.55x = 115,584,913,950.36
  5. Step 5: Solve for x
    x = 115,584,913,950.36/402,128.55
  6. Step 6: Final answer
    x = 287,432.75

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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.