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Finding the Fourth Proportional to 346,549, 478,239.06 and 187,573

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Solution

The fourth proportional to 346,549, 478,239.06 and 187,573 is: 258,851.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,549 : 478,239.06 = 187,573 : x
  2. Step 2: Convert to fraction form
    346,549/478,239.06 = 187,573/x
  3. Step 3: Cross multiply
    346,549x = 478,239.06 × 187,573
  4. Step 4: Simplify right side
    346,549x = 89,704,735,201.38
  5. Step 5: Solve for x
    x = 89,704,735,201.38/346,549
  6. Step 6: Final answer
    x = 258,851.52

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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.