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Finding the Fourth Proportional to 346,039.38, 478,194.42 and 249,559.86

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Solution

The fourth proportional to 346,039.38, 478,194.42 and 249,559.86 is: 344,868.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,039.38 : 478,194.42 = 249,559.86 : x
  2. Step 2: Convert to fraction form
    346,039.38/478,194.42 = 249,559.86/x
  3. Step 3: Cross multiply
    346,039.38x = 478,194.42 × 249,559.86
  4. Step 4: Simplify right side
    346,039.38x = 119,338,132,507.98
  5. Step 5: Solve for x
    x = 119,338,132,507.98/346,039.38
  6. Step 6: Final answer
    x = 344,868.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.