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Finding the Fourth Proportional to 291,553.40, 402,376.37 and 162,503.65

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Solution

The fourth proportional to 291,553.40, 402,376.37 and 162,503.65 is: 224,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,553.40 : 402,376.37 = 162,503.65 : x
  2. Step 2: Convert to fraction form
    291,553.40/402,376.37 = 162,503.65/x
  3. Step 3: Cross multiply
    291,553.40x = 402,376.37 × 162,503.65
  4. Step 4: Simplify right side
    291,553.40x = 65,387,628,798.75
  5. Step 5: Solve for x
    x = 65,387,628,798.75/291,553.40
  6. Step 6: Final answer
    x = 224,273.25

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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.