Home / 217,913.12-326,567.28-99,294.56

Finding the Fourth Proportional to 217,913.12, 326,567.28 and 99,294.56

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Solution

The fourth proportional to 217,913.12, 326,567.28 and 99,294.56 is: 148,804.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,913.12 : 326,567.28 = 99,294.56 : x
  2. Step 2: Convert to fraction form
    217,913.12/326,567.28 = 99,294.56/x
  3. Step 3: Cross multiply
    217,913.12x = 326,567.28 × 99,294.56
  4. Step 4: Simplify right side
    217,913.12x = 32,426,354,378.00
  5. Step 5: Solve for x
    x = 32,426,354,378.00/217,913.12
  6. Step 6: Final answer
    x = 148,804.05

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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.