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Finding the Fourth Proportional to 249,590.91, 374,116.37 and 99,666.39

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Solution

The fourth proportional to 249,590.91, 374,116.37 and 99,666.39 is: 149,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,590.91 : 374,116.37 = 99,666.39 : x
  2. Step 2: Convert to fraction form
    249,590.91/374,116.37 = 99,666.39/x
  3. Step 3: Cross multiply
    249,590.91x = 374,116.37 × 99,666.39
  4. Step 4: Simplify right side
    249,590.91x = 37,286,827,539.47
  5. Step 5: Solve for x
    x = 37,286,827,539.47/249,590.91
  6. Step 6: Final answer
    x = 149,391.77

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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.