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Finding the Fourth Proportional to 210,369.02, 290,332.13 and 129,794.47

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Solution

The fourth proportional to 210,369.02, 290,332.13 and 129,794.47 is: 179,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,369.02 : 290,332.13 = 129,794.47 : x
  2. Step 2: Convert to fraction form
    210,369.02/290,332.13 = 129,794.47/x
  3. Step 3: Cross multiply
    210,369.02x = 290,332.13 × 129,794.47
  4. Step 4: Simplify right side
    210,369.02x = 37,683,503,562.52
  5. Step 5: Solve for x
    x = 37,683,503,562.52/210,369.02
  6. Step 6: Final answer
    x = 179,130.48

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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.