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Finding the Fourth Proportional to 220,345.69, 330,547.95 and 87,194.81

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Solution

The fourth proportional to 220,345.69, 330,547.95 and 87,194.81 is: 130,803.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,345.69 : 330,547.95 = 87,194.81 : x
  2. Step 2: Convert to fraction form
    220,345.69/330,547.95 = 87,194.81/x
  3. Step 3: Cross multiply
    220,345.69x = 330,547.95 × 87,194.81
  4. Step 4: Simplify right side
    220,345.69x = 28,822,064,043.40
  5. Step 5: Solve for x
    x = 28,822,064,043.40/220,345.69
  6. Step 6: Final answer
    x = 130,803.85

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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.