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Finding the Fourth Proportional to 219,030.70, 328,655.40 and 124,333.60

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Solution

The fourth proportional to 219,030.70, 328,655.40 and 124,333.60 is: 186,562.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,030.70 : 328,655.40 = 124,333.60 : x
  2. Step 2: Convert to fraction form
    219,030.70/328,655.40 = 124,333.60/x
  3. Step 3: Cross multiply
    219,030.70x = 328,655.40 × 124,333.60
  4. Step 4: Simplify right side
    219,030.70x = 40,862,909,041.44
  5. Step 5: Solve for x
    x = 40,862,909,041.44/219,030.70
  6. Step 6: Final answer
    x = 186,562.47

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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.