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Finding the Fourth Proportional to 537,218.40, 805,827.60 and 221,570.40

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Solution

The fourth proportional to 537,218.40, 805,827.60 and 221,570.40 is: 332,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,218.40 : 805,827.60 = 221,570.40 : x
  2. Step 2: Convert to fraction form
    537,218.40/805,827.60 = 221,570.40/x
  3. Step 3: Cross multiply
    537,218.40x = 805,827.60 × 221,570.40
  4. Step 4: Simplify right side
    537,218.40x = 178,547,543,663.04
  5. Step 5: Solve for x
    x = 178,547,543,663.04/537,218.40
  6. Step 6: Final answer
    x = 332,355.60

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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.