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Finding the Fourth Proportional to 240,545.72, 360,424.56 and 128,106.56

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Solution

The fourth proportional to 240,545.72, 360,424.56 and 128,106.56 is: 191,950.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,545.72 : 360,424.56 = 128,106.56 : x
  2. Step 2: Convert to fraction form
    240,545.72/360,424.56 = 128,106.56/x
  3. Step 3: Cross multiply
    240,545.72x = 360,424.56 × 128,106.56
  4. Step 4: Simplify right side
    240,545.72x = 46,172,750,521.11
  5. Step 5: Solve for x
    x = 46,172,750,521.11/240,545.72
  6. Step 6: Final answer
    x = 191,950.00

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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.