Home / 256,534.12-384,807.90-121,566.52

Finding the Fourth Proportional to 256,534.12, 384,807.90 and 121,566.52

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Solution

The fourth proportional to 256,534.12, 384,807.90 and 121,566.52 is: 182,352.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,534.12 : 384,807.90 = 121,566.52 : x
  2. Step 2: Convert to fraction form
    256,534.12/384,807.90 = 121,566.52/x
  3. Step 3: Cross multiply
    256,534.12x = 384,807.90 × 121,566.52
  4. Step 4: Simplify right side
    256,534.12x = 46,779,757,271.51
  5. Step 5: Solve for x
    x = 46,779,757,271.51/256,534.12
  6. Step 6: Final answer
    x = 182,352.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.