Home / 282,830.04-390,305.52-155,514.24

Finding the Fourth Proportional to 282,830.04, 390,305.52 and 155,514.24

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Solution

The fourth proportional to 282,830.04, 390,305.52 and 155,514.24 is: 214,609.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,830.04 : 390,305.52 = 155,514.24 : x
  2. Step 2: Convert to fraction form
    282,830.04/390,305.52 = 155,514.24/x
  3. Step 3: Cross multiply
    282,830.04x = 390,305.52 × 155,514.24
  4. Step 4: Simplify right side
    282,830.04x = 60,698,066,310.60
  5. Step 5: Solve for x
    x = 60,698,066,310.60/282,830.04
  6. Step 6: Final answer
    x = 214,609.69

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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.