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Finding the Fourth Proportional to 348,700, 523,050 and 86,044

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Solution

The fourth proportional to 348,700, 523,050 and 86,044 is: 129,066

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,700 : 523,050 = 86,044 : x
  2. Step 2: Convert to fraction form
    348,700/523,050 = 86,044/x
  3. Step 3: Cross multiply
    348,700x = 523,050 × 86,044
  4. Step 4: Simplify right side
    348,700x = 45,005,314,200
  5. Step 5: Solve for x
    x = 45,005,314,200/348,700
  6. Step 6: Final answer
    x = 129,066

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.