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Finding the Fourth Proportional to 249,139.70, 373,600.20 and 99,330.20

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Solution

The fourth proportional to 249,139.70, 373,600.20 and 99,330.20 is: 148,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,139.70 : 373,600.20 = 99,330.20 : x
  2. Step 2: Convert to fraction form
    249,139.70/373,600.20 = 99,330.20/x
  3. Step 3: Cross multiply
    249,139.70x = 373,600.20 × 99,330.20
  4. Step 4: Simplify right side
    249,139.70x = 37,109,782,586.04
  5. Step 5: Solve for x
    x = 37,109,782,586.04/249,139.70
  6. Step 6: Final answer
    x = 148,951.70

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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.