Home / 543,417.20-815,161.80-144,052.40

Finding the Fourth Proportional to 543,417.20, 815,161.80 and 144,052.40

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Solution

The fourth proportional to 543,417.20, 815,161.80 and 144,052.40 is: 216,088.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,417.20 : 815,161.80 = 144,052.40 : x
  2. Step 2: Convert to fraction form
    543,417.20/815,161.80 = 144,052.40/x
  3. Step 3: Cross multiply
    543,417.20x = 815,161.80 × 144,052.40
  4. Step 4: Simplify right side
    543,417.20x = 117,426,013,678.32
  5. Step 5: Solve for x
    x = 117,426,013,678.32/543,417.20
  6. Step 6: Final answer
    x = 216,088.14

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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.