Home / 286,837.02-430,108.65-168,543.90

Finding the Fourth Proportional to 286,837.02, 430,108.65 and 168,543.90

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Solution

The fourth proportional to 286,837.02, 430,108.65 and 168,543.90 is: 252,729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,837.02 : 430,108.65 = 168,543.90 : x
  2. Step 2: Convert to fraction form
    286,837.02/430,108.65 = 168,543.90/x
  3. Step 3: Cross multiply
    286,837.02x = 430,108.65 × 168,543.90
  4. Step 4: Simplify right side
    286,837.02x = 72,492,189,294.74
  5. Step 5: Solve for x
    x = 72,492,189,294.74/286,837.02
  6. Step 6: Final answer
    x = 252,729.54

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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.