Home / 211,445.36-291,798.64-115,946.40

Finding the Fourth Proportional to 211,445.36, 291,798.64 and 115,946.40

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Solution

The fourth proportional to 211,445.36, 291,798.64 and 115,946.40 is: 160,008.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,445.36 : 291,798.64 = 115,946.40 : x
  2. Step 2: Convert to fraction form
    211,445.36/291,798.64 = 115,946.40/x
  3. Step 3: Cross multiply
    211,445.36x = 291,798.64 × 115,946.40
  4. Step 4: Simplify right side
    211,445.36x = 33,833,001,832.90
  5. Step 5: Solve for x
    x = 33,833,001,832.90/211,445.36
  6. Step 6: Final answer
    x = 160,008.25

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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.