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Finding the Fourth Proportional to 219,548.80, 328,862.40 and 120,937.60

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Solution

The fourth proportional to 219,548.80, 328,862.40 and 120,937.60 is: 181,152.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,548.80 : 328,862.40 = 120,937.60 : x
  2. Step 2: Convert to fraction form
    219,548.80/328,862.40 = 120,937.60/x
  3. Step 3: Cross multiply
    219,548.80x = 328,862.40 × 120,937.60
  4. Step 4: Simplify right side
    219,548.80x = 39,771,829,386.24
  5. Step 5: Solve for x
    x = 39,771,829,386.24/219,548.80
  6. Step 6: Final answer
    x = 181,152.57

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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.