Home / 282,777.42-390,234.06-155,461.20

Finding the Fourth Proportional to 282,777.42, 390,234.06 and 155,461.20

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Solution

The fourth proportional to 282,777.42, 390,234.06 and 155,461.20 is: 214,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,777.42 : 390,234.06 = 155,461.20 : x
  2. Step 2: Convert to fraction form
    282,777.42/390,234.06 = 155,461.20/x
  3. Step 3: Cross multiply
    282,777.42x = 390,234.06 × 155,461.20
  4. Step 4: Simplify right side
    282,777.42x = 60,666,255,248.47
  5. Step 5: Solve for x
    x = 60,666,255,248.47/282,777.42
  6. Step 6: Final answer
    x = 214,537.13

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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.