Home / 282,835.92-390,315.02-155,519.70

Finding the Fourth Proportional to 282,835.92, 390,315.02 and 155,519.70

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Solution

The fourth proportional to 282,835.92, 390,315.02 and 155,519.70 is: 214,617.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,835.92 : 390,315.02 = 155,519.70 : x
  2. Step 2: Convert to fraction form
    282,835.92/390,315.02 = 155,519.70/x
  3. Step 3: Cross multiply
    282,835.92x = 390,315.02 × 155,519.70
  4. Step 4: Simplify right side
    282,835.92x = 60,701,674,038.30
  5. Step 5: Solve for x
    x = 60,701,674,038.30/282,835.92
  6. Step 6: Final answer
    x = 214,617.98

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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.