Home / 402,454.32-555,057.36-249,386.19

Finding the Fourth Proportional to 402,454.32, 555,057.36 and 249,386.19

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Solution

The fourth proportional to 402,454.32, 555,057.36 and 249,386.19 is: 343,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,454.32 : 555,057.36 = 249,386.19 : x
  2. Step 2: Convert to fraction form
    402,454.32/555,057.36 = 249,386.19/x
  3. Step 3: Cross multiply
    402,454.32x = 555,057.36 × 249,386.19
  4. Step 4: Simplify right side
    402,454.32x = 138,423,640,241.86
  5. Step 5: Solve for x
    x = 138,423,640,241.86/402,454.32
  6. Step 6: Final answer
    x = 343,948.70

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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.