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Finding the Fourth Proportional to 473,276.39, 653,147.88 and 258,436.40

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Solution

The fourth proportional to 473,276.39, 653,147.88 and 258,436.40 is: 356,656.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,276.39 : 653,147.88 = 258,436.40 : x
  2. Step 2: Convert to fraction form
    473,276.39/653,147.88 = 258,436.40/x
  3. Step 3: Cross multiply
    473,276.39x = 653,147.88 × 258,436.40
  4. Step 4: Simplify right side
    473,276.39x = 168,797,186,774.83
  5. Step 5: Solve for x
    x = 168,797,186,774.83/473,276.39
  6. Step 6: Final answer
    x = 356,656.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.