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Finding the Fourth Proportional to 152,443.40, 228,665.10 and 69,337.40

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Solution

The fourth proportional to 152,443.40, 228,665.10 and 69,337.40 is: 104,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,443.40 : 228,665.10 = 69,337.40 : x
  2. Step 2: Convert to fraction form
    152,443.40/228,665.10 = 69,337.40/x
  3. Step 3: Cross multiply
    152,443.40x = 228,665.10 × 69,337.40
  4. Step 4: Simplify right side
    152,443.40x = 15,855,043,504.74
  5. Step 5: Solve for x
    x = 15,855,043,504.74/152,443.40
  6. Step 6: Final answer
    x = 104,006.10

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1.5x scale

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.