Home / 309,130.38-426,425.58-180,053.64

Finding the Fourth Proportional to 309,130.38, 426,425.58 and 180,053.64

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Solution

The fourth proportional to 309,130.38, 426,425.58 and 180,053.64 is: 248,372.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,130.38 : 426,425.58 = 180,053.64 : x
  2. Step 2: Convert to fraction form
    309,130.38/426,425.58 = 180,053.64/x
  3. Step 3: Cross multiply
    309,130.38x = 426,425.58 × 180,053.64
  4. Step 4: Simplify right side
    309,130.38x = 76,779,477,868.11
  5. Step 5: Solve for x
    x = 76,779,477,868.11/309,130.38
  6. Step 6: Final answer
    x = 248,372.48

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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.