Home / 249,921.40-374,930.70-72,434.20

Finding the Fourth Proportional to 249,921.40, 374,930.70 and 72,434.20

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Solution

The fourth proportional to 249,921.40, 374,930.70 and 72,434.20 is: 108,665.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,921.40 : 374,930.70 = 72,434.20 : x
  2. Step 2: Convert to fraction form
    249,921.40/374,930.70 = 72,434.20/x
  3. Step 3: Cross multiply
    249,921.40x = 374,930.70 × 72,434.20
  4. Step 4: Simplify right side
    249,921.40x = 27,157,805,309.94
  5. Step 5: Solve for x
    x = 27,157,805,309.94/249,921.40
  6. Step 6: Final answer
    x = 108,665.39

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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.