Home / 282,835.66-390,314.68-155,519.46

Finding the Fourth Proportional to 282,835.66, 390,314.68 and 155,519.46

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Solution

The fourth proportional to 282,835.66, 390,314.68 and 155,519.46 is: 214,617.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,835.66 : 390,314.68 = 155,519.46 : x
  2. Step 2: Convert to fraction form
    282,835.66/390,314.68 = 155,519.46/x
  3. Step 3: Cross multiply
    282,835.66x = 390,314.68 × 155,519.46
  4. Step 4: Simplify right side
    282,835.66x = 60,701,528,263.67
  5. Step 5: Solve for x
    x = 60,701,528,263.67/282,835.66
  6. Step 6: Final answer
    x = 214,617.66

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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.