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Finding the Fourth Proportional to 346,142.76, 477,677.70 and 187,166.76

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Solution

The fourth proportional to 346,142.76, 477,677.70 and 187,166.76 is: 258,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,142.76 : 477,677.70 = 187,166.76 : x
  2. Step 2: Convert to fraction form
    346,142.76/477,677.70 = 187,166.76/x
  3. Step 3: Cross multiply
    346,142.76x = 477,677.70 × 187,166.76
  4. Step 4: Simplify right side
    346,142.76x = 89,405,387,433.25
  5. Step 5: Solve for x
    x = 89,405,387,433.25/346,142.76
  6. Step 6: Final answer
    x = 258,290.50

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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.