Home / 282,630.33-390,037.01-155,309.13

Finding the Fourth Proportional to 282,630.33, 390,037.01 and 155,309.13

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Solution

The fourth proportional to 282,630.33, 390,037.01 and 155,309.13 is: 214,330.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,630.33 : 390,037.01 = 155,309.13 : x
  2. Step 2: Convert to fraction form
    282,630.33/390,037.01 = 155,309.13/x
  3. Step 3: Cross multiply
    282,630.33x = 390,037.01 × 155,309.13
  4. Step 4: Simplify right side
    282,630.33x = 60,576,307,914.36
  5. Step 5: Solve for x
    x = 60,576,307,914.36/282,630.33
  6. Step 6: Final answer
    x = 214,330.53

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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.