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Finding the Fourth Proportional to 346,347.70, 478,068.72 and 203,165.62

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Solution

The fourth proportional to 346,347.70, 478,068.72 and 203,165.62 is: 280,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,347.70 : 478,068.72 = 203,165.62 : x
  2. Step 2: Convert to fraction form
    346,347.70/478,068.72 = 203,165.62/x
  3. Step 3: Cross multiply
    346,347.70x = 478,068.72 × 203,165.62
  4. Step 4: Simplify right side
    346,347.70x = 97,127,127,901.41
  5. Step 5: Solve for x
    x = 97,127,127,901.41/346,347.70
  6. Step 6: Final answer
    x = 280,432.43

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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.