Home / 283,031.54-390,586.07-153,972.83

Finding the Fourth Proportional to 283,031.54, 390,586.07 and 153,972.83

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Solution

The fourth proportional to 283,031.54, 390,586.07 and 153,972.83 is: 212,483.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,031.54 : 390,586.07 = 153,972.83 : x
  2. Step 2: Convert to fraction form
    283,031.54/390,586.07 = 153,972.83/x
  3. Step 3: Cross multiply
    283,031.54x = 390,586.07 × 153,972.83
  4. Step 4: Simplify right side
    283,031.54x = 60,139,642,552.67
  5. Step 5: Solve for x
    x = 60,139,642,552.67/283,031.54
  6. Step 6: Final answer
    x = 212,483.89

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1.5x scale

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.