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Finding the Fourth Proportional to 249,612.60, 374,417.54 and 99,887.55

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Solution

The fourth proportional to 249,612.60, 374,417.54 and 99,887.55 is: 149,830.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,612.60 : 374,417.54 = 99,887.55 : x
  2. Step 2: Convert to fraction form
    249,612.60/374,417.54 = 99,887.55/x
  3. Step 3: Cross multiply
    249,612.60x = 374,417.54 × 99,887.55
  4. Step 4: Simplify right side
    249,612.60x = 37,399,649,218.70
  5. Step 5: Solve for x
    x = 37,399,649,218.70/249,612.60
  6. Step 6: Final answer
    x = 149,830.77

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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.