Home / 282,832.05-390,314.90-153,777.89

Finding the Fourth Proportional to 282,832.05, 390,314.90 and 153,777.89

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Solution

The fourth proportional to 282,832.05, 390,314.90 and 153,777.89 is: 212,217.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,832.05 : 390,314.90 = 153,777.89 : x
  2. Step 2: Convert to fraction form
    282,832.05/390,314.90 = 153,777.89/x
  3. Step 3: Cross multiply
    282,832.05x = 390,314.90 × 153,777.89
  4. Step 4: Simplify right side
    282,832.05x = 60,021,803,117.79
  5. Step 5: Solve for x
    x = 60,021,803,117.79/282,832.05
  6. Step 6: Final answer
    x = 212,217.12

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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.