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Finding the Fourth Proportional to 249,527.71, 374,398.79 and 81,099.65

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Solution

The fourth proportional to 249,527.71, 374,398.79 and 81,099.65 is: 121,684.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,527.71 : 374,398.79 = 81,099.65 : x
  2. Step 2: Convert to fraction form
    249,527.71/374,398.79 = 81,099.65/x
  3. Step 3: Cross multiply
    249,527.71x = 374,398.79 × 81,099.65
  4. Step 4: Simplify right side
    249,527.71x = 30,363,610,829.42
  5. Step 5: Solve for x
    x = 30,363,610,829.42/249,527.71
  6. Step 6: Final answer
    x = 121,684.32

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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.