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Finding the Fourth Proportional to 473,298.69, 653,154.59 and 258,438.75

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Solution

The fourth proportional to 473,298.69, 653,154.59 and 258,438.75 is: 356,646.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,298.69 : 653,154.59 = 258,438.75 : x
  2. Step 2: Convert to fraction form
    473,298.69/653,154.59 = 258,438.75/x
  3. Step 3: Cross multiply
    473,298.69x = 653,154.59 × 258,438.75
  4. Step 4: Simplify right side
    473,298.69x = 168,800,455,796.36
  5. Step 5: Solve for x
    x = 168,800,455,796.36/473,298.69
  6. Step 6: Final answer
    x = 356,646.78

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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.