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Finding the Fourth Proportional to 369,570.40, 554,355.60 and 243,353.16

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Solution

The fourth proportional to 369,570.40, 554,355.60 and 243,353.16 is: 365,029.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,570.40 : 554,355.60 = 243,353.16 : x
  2. Step 2: Convert to fraction form
    369,570.40/554,355.60 = 243,353.16/x
  3. Step 3: Cross multiply
    369,570.40x = 554,355.60 × 243,353.16
  4. Step 4: Simplify right side
    369,570.40x = 134,904,187,023.70
  5. Step 5: Solve for x
    x = 134,904,187,023.70/369,570.40
  6. Step 6: Final answer
    x = 365,029.74

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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.