Home / 397,972.07-549,196.30-216,681.92

Finding the Fourth Proportional to 397,972.07, 549,196.30 and 216,681.92

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Solution

The fourth proportional to 397,972.07, 549,196.30 and 216,681.92 is: 299,018.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,972.07 : 549,196.30 = 216,681.92 : x
  2. Step 2: Convert to fraction form
    397,972.07/549,196.30 = 216,681.92/x
  3. Step 3: Cross multiply
    397,972.07x = 549,196.30 × 216,681.92
  4. Step 4: Simplify right side
    397,972.07x = 119,000,908,740.90
  5. Step 5: Solve for x
    x = 119,000,908,740.90/397,972.07
  6. Step 6: Final answer
    x = 299,018.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.