Home / 257,868.96-385,038.66-231,041.76

Finding the Fourth Proportional to 257,868.96, 385,038.66 and 231,041.76

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Solution

The fourth proportional to 257,868.96, 385,038.66 and 231,041.76 is: 344,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,868.96 : 385,038.66 = 231,041.76 : x
  2. Step 2: Convert to fraction form
    257,868.96/385,038.66 = 231,041.76/x
  3. Step 3: Cross multiply
    257,868.96x = 385,038.66 × 231,041.76
  4. Step 4: Simplify right side
    257,868.96x = 88,960,009,674.44
  5. Step 5: Solve for x
    x = 88,960,009,674.44/257,868.96
  6. Step 6: Final answer
    x = 344,981.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.