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Finding the Fourth Proportional to 220,547.78, 330,688.50 and 98,946.11

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Solution

The fourth proportional to 220,547.78, 330,688.50 and 98,946.11 is: 148,359.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,547.78 : 330,688.50 = 98,946.11 : x
  2. Step 2: Convert to fraction form
    220,547.78/330,688.50 = 98,946.11/x
  3. Step 3: Cross multiply
    220,547.78x = 330,688.50 × 98,946.11
  4. Step 4: Simplify right side
    220,547.78x = 32,720,340,696.74
  5. Step 5: Solve for x
    x = 32,720,340,696.74/220,547.78
  6. Step 6: Final answer
    x = 148,359.42

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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.