Home / 282,629.69-390,024.54-155,302.55

Finding the Fourth Proportional to 282,629.69, 390,024.54 and 155,302.55

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Solution

The fourth proportional to 282,629.69, 390,024.54 and 155,302.55 is: 214,315.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,629.69 : 390,024.54 = 155,302.55 : x
  2. Step 2: Convert to fraction form
    282,629.69/390,024.54 = 155,302.55/x
  3. Step 3: Cross multiply
    282,629.69x = 390,024.54 × 155,302.55
  4. Step 4: Simplify right side
    282,629.69x = 60,571,805,624.58
  5. Step 5: Solve for x
    x = 60,571,805,624.58/282,629.69
  6. Step 6: Final answer
    x = 214,315.08

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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.