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Finding the Fourth Proportional to 553,463.88, 830,181.23 and 154,088.52

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Solution

The fourth proportional to 553,463.88, 830,181.23 and 154,088.52 is: 231,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,463.88 : 830,181.23 = 154,088.52 : x
  2. Step 2: Convert to fraction form
    553,463.88/830,181.23 = 154,088.52/x
  3. Step 3: Cross multiply
    553,463.88x = 830,181.23 × 154,088.52
  4. Step 4: Simplify right side
    553,463.88x = 127,921,397,062.48
  5. Step 5: Solve for x
    x = 127,921,397,062.48/553,463.88
  6. Step 6: Final answer
    x = 231,128.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.