Home / 257,400.78-385,674.45-182,148.06

Finding the Fourth Proportional to 257,400.78, 385,674.45 and 182,148.06

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Solution

The fourth proportional to 257,400.78, 385,674.45 and 182,148.06 is: 272,920.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,400.78 : 385,674.45 = 182,148.06 : x
  2. Step 2: Convert to fraction form
    257,400.78/385,674.45 = 182,148.06/x
  3. Step 3: Cross multiply
    257,400.78x = 385,674.45 × 182,148.06
  4. Step 4: Simplify right side
    257,400.78x = 70,249,852,859.07
  5. Step 5: Solve for x
    x = 70,249,852,859.07/257,400.78
  6. Step 6: Final answer
    x = 272,920.12

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1.5x scale

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.