Home / 219,038.20-328,597.86-69,316.18

Finding the Fourth Proportional to 219,038.20, 328,597.86 and 69,316.18

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Solution

The fourth proportional to 219,038.20, 328,597.86 and 69,316.18 is: 103,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,038.20 : 328,597.86 = 69,316.18 : x
  2. Step 2: Convert to fraction form
    219,038.20/328,597.86 = 69,316.18/x
  3. Step 3: Cross multiply
    219,038.20x = 328,597.86 × 69,316.18
  4. Step 4: Simplify right side
    219,038.20x = 22,777,148,411.37
  5. Step 5: Solve for x
    x = 22,777,148,411.37/219,038.20
  6. Step 6: Final answer
    x = 103,987.11

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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.