Home / 355,386.04-532,815.06-215,111.80

Finding the Fourth Proportional to 355,386.04, 532,815.06 and 215,111.80

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Solution

The fourth proportional to 355,386.04, 532,815.06 and 215,111.80 is: 322,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,386.04 : 532,815.06 = 215,111.80 : x
  2. Step 2: Convert to fraction form
    355,386.04/532,815.06 = 215,111.80/x
  3. Step 3: Cross multiply
    355,386.04x = 532,815.06 × 215,111.80
  4. Step 4: Simplify right side
    355,386.04x = 114,614,806,623.71
  5. Step 5: Solve for x
    x = 114,614,806,623.71/355,386.04
  6. Step 6: Final answer
    x = 322,507.90

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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.