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Finding the Fourth Proportional to 346,569, 478,266.66 and 187,593

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Solution

The fourth proportional to 346,569, 478,266.66 and 187,593 is: 258,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,569 : 478,266.66 = 187,593 : x
  2. Step 2: Convert to fraction form
    346,569/478,266.66 = 187,593/x
  3. Step 3: Cross multiply
    346,569x = 478,266.66 × 187,593
  4. Step 4: Simplify right side
    346,569x = 89,719,477,549.38
  5. Step 5: Solve for x
    x = 89,719,477,549.38/346,569
  6. Step 6: Final answer
    x = 258,879.12

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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.