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Finding the Fourth Proportional to 240,803.43, 332,312.13 and 138,826.86

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Solution

The fourth proportional to 240,803.43, 332,312.13 and 138,826.86 is: 191,583.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,803.43 : 332,312.13 = 138,826.86 : x
  2. Step 2: Convert to fraction form
    240,803.43/332,312.13 = 138,826.86/x
  3. Step 3: Cross multiply
    240,803.43x = 332,312.13 × 138,826.86
  4. Step 4: Simplify right side
    240,803.43x = 46,133,849,547.81
  5. Step 5: Solve for x
    x = 46,133,849,547.81/240,803.43
  6. Step 6: Final answer
    x = 191,583.02

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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.