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Finding the Fourth Proportional to 372,045.61, 513,440.49 and 210,903.79

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Solution

The fourth proportional to 372,045.61, 513,440.49 and 210,903.79 is: 291,057.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,045.61 : 513,440.49 = 210,903.79 : x
  2. Step 2: Convert to fraction form
    372,045.61/513,440.49 = 210,903.79/x
  3. Step 3: Cross multiply
    372,045.61x = 513,440.49 × 210,903.79
  4. Step 4: Simplify right side
    372,045.61x = 108,286,545,280.46
  5. Step 5: Solve for x
    x = 108,286,545,280.46/372,045.61
  6. Step 6: Final answer
    x = 291,057.18

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1.5x scale

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.