Home / 261,036.60-391,554.90-181,320.45

Finding the Fourth Proportional to 261,036.60, 391,554.90 and 181,320.45

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Solution

The fourth proportional to 261,036.60, 391,554.90 and 181,320.45 is: 271,980.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,036.60 : 391,554.90 = 181,320.45 : x
  2. Step 2: Convert to fraction form
    261,036.60/391,554.90 = 181,320.45/x
  3. Step 3: Cross multiply
    261,036.60x = 391,554.90 × 181,320.45
  4. Step 4: Simplify right side
    261,036.60x = 70,996,910,667.71
  5. Step 5: Solve for x
    x = 70,996,910,667.71/261,036.60
  6. Step 6: Final answer
    x = 271,980.68

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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.