Home / 369,328.10-554,429.55-209,531.30

Finding the Fourth Proportional to 369,328.10, 554,429.55 and 209,531.30

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Solution

The fourth proportional to 369,328.10, 554,429.55 and 209,531.30 is: 314,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,328.10 : 554,429.55 = 209,531.30 : x
  2. Step 2: Convert to fraction form
    369,328.10/554,429.55 = 209,531.30/x
  3. Step 3: Cross multiply
    369,328.10x = 554,429.55 × 209,531.30
  4. Step 4: Simplify right side
    369,328.10x = 116,170,344,369.92
  5. Step 5: Solve for x
    x = 116,170,344,369.92/369,328.10
  6. Step 6: Final answer
    x = 314,545.10

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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.