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Finding the Fourth Proportional to 318,852.57, 477,950.80 and 141,443.13

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Solution

The fourth proportional to 318,852.57, 477,950.80 and 141,443.13 is: 212,019.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,852.57 : 477,950.80 = 141,443.13 : x
  2. Step 2: Convert to fraction form
    318,852.57/477,950.80 = 141,443.13/x
  3. Step 3: Cross multiply
    318,852.57x = 477,950.80 × 141,443.13
  4. Step 4: Simplify right side
    318,852.57x = 67,602,854,394.64
  5. Step 5: Solve for x
    x = 67,602,854,394.64/318,852.57
  6. Step 6: Final answer
    x = 212,019.16

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1.5x scale

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.