Home / 282,627.05-390,028.40-155,302.62

Finding the Fourth Proportional to 282,627.05, 390,028.40 and 155,302.62

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Solution

The fourth proportional to 282,627.05, 390,028.40 and 155,302.62 is: 214,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,627.05 : 390,028.40 = 155,302.62 : x
  2. Step 2: Convert to fraction form
    282,627.05/390,028.40 = 155,302.62/x
  3. Step 3: Cross multiply
    282,627.05x = 390,028.40 × 155,302.62
  4. Step 4: Simplify right side
    282,627.05x = 60,572,431,617.89
  5. Step 5: Solve for x
    x = 60,572,431,617.89/282,627.05
  6. Step 6: Final answer
    x = 214,319.30

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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.