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Finding the Fourth Proportional to 473,668.95, 653,648.63 and 258,808.72

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Solution

The fourth proportional to 473,668.95, 653,648.63 and 258,808.72 is: 357,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,668.95 : 653,648.63 = 258,808.72 : x
  2. Step 2: Convert to fraction form
    473,668.95/653,648.63 = 258,808.72/x
  3. Step 3: Cross multiply
    473,668.95x = 653,648.63 × 258,808.72
  4. Step 4: Simplify right side
    473,668.95x = 169,169,965,260.05
  5. Step 5: Solve for x
    x = 169,169,965,260.05/473,668.95
  6. Step 6: Final answer
    x = 357,148.10

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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.