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Finding the Fourth Proportional to 249,140.70, 373,601.70 and 99,331.20

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Solution

The fourth proportional to 249,140.70, 373,601.70 and 99,331.20 is: 148,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,140.70 : 373,601.70 = 99,331.20 : x
  2. Step 2: Convert to fraction form
    249,140.70/373,601.70 = 99,331.20/x
  3. Step 3: Cross multiply
    249,140.70x = 373,601.70 × 99,331.20
  4. Step 4: Simplify right side
    249,140.70x = 37,110,305,183.04
  5. Step 5: Solve for x
    x = 37,110,305,183.04/249,140.70
  6. Step 6: Final answer
    x = 148,953.20

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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.