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Finding the Fourth Proportional to 249,287.16, 373,931.36 and 99,539.64

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Solution

The fourth proportional to 249,287.16, 373,931.36 and 99,539.64 is: 149,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,287.16 : 373,931.36 = 99,539.64 : x
  2. Step 2: Convert to fraction form
    249,287.16/373,931.36 = 99,539.64/x
  3. Step 3: Cross multiply
    249,287.16x = 373,931.36 × 99,539.64
  4. Step 4: Simplify right side
    249,287.16x = 37,220,992,959.11
  5. Step 5: Solve for x
    x = 37,220,992,959.11/249,287.16
  6. Step 6: Final answer
    x = 149,309.71

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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.