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Finding the Fourth Proportional to 292,130.96, 402,165.96 and 278,756.24

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Solution

The fourth proportional to 292,130.96, 402,165.96 and 278,756.24 is: 383,753.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,130.96 : 402,165.96 = 278,756.24 : x
  2. Step 2: Convert to fraction form
    292,130.96/402,165.96 = 278,756.24/x
  3. Step 3: Cross multiply
    292,130.96x = 402,165.96 × 278,756.24
  4. Step 4: Simplify right side
    292,130.96x = 112,106,270,865.59
  5. Step 5: Solve for x
    x = 112,106,270,865.59/292,130.96
  6. Step 6: Final answer
    x = 383,753.47

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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.