Home / 282,841.09-390,327.32-153,786.89

Finding the Fourth Proportional to 282,841.09, 390,327.32 and 153,786.89

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Solution

The fourth proportional to 282,841.09, 390,327.32 and 153,786.89 is: 212,229.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,841.09 : 390,327.32 = 153,786.89 : x
  2. Step 2: Convert to fraction form
    282,841.09/390,327.32 = 153,786.89/x
  3. Step 3: Cross multiply
    282,841.09x = 390,327.32 × 153,786.89
  4. Step 4: Simplify right side
    282,841.09x = 60,027,225,985.12
  5. Step 5: Solve for x
    x = 60,027,225,985.12/282,841.09
  6. Step 6: Final answer
    x = 212,229.51

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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.