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Finding the Fourth Proportional to 346,484.09, 478,148.00 and 187,508.09

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Solution

The fourth proportional to 346,484.09, 478,148.00 and 187,508.09 is: 258,761.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,484.09 : 478,148.00 = 187,508.09 : x
  2. Step 2: Convert to fraction form
    346,484.09/478,148.00 = 187,508.09/x
  3. Step 3: Cross multiply
    346,484.09x = 478,148.00 × 187,508.09
  4. Step 4: Simplify right side
    346,484.09x = 89,656,614,889.04
  5. Step 5: Solve for x
    x = 89,656,614,889.04/346,484.09
  6. Step 6: Final answer
    x = 258,761.13

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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.