Home / 289,031.80-433,256.10-131,373.40

Finding the Fourth Proportional to 289,031.80, 433,256.10 and 131,373.40

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Solution

The fourth proportional to 289,031.80, 433,256.10 and 131,373.40 is: 196,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,031.80 : 433,256.10 = 131,373.40 : x
  2. Step 2: Convert to fraction form
    289,031.80/433,256.10 = 131,373.40/x
  3. Step 3: Cross multiply
    289,031.80x = 433,256.10 × 131,373.40
  4. Step 4: Simplify right side
    289,031.80x = 56,918,326,927.74
  5. Step 5: Solve for x
    x = 56,918,326,927.74/289,031.80
  6. Step 6: Final answer
    x = 196,927.56

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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.