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Finding the Fourth Proportional to 292,018.89, 402,986.67 and 157,882.89

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Solution

The fourth proportional to 292,018.89, 402,986.67 and 157,882.89 is: 217,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,018.89 : 402,986.67 = 157,882.89 : x
  2. Step 2: Convert to fraction form
    292,018.89/402,986.67 = 157,882.89/x
  3. Step 3: Cross multiply
    292,018.89x = 402,986.67 × 157,882.89
  4. Step 4: Simplify right side
    292,018.89x = 63,624,700,091.08
  5. Step 5: Solve for x
    x = 63,624,700,091.08/292,018.89
  6. Step 6: Final answer
    x = 217,878.71

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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.