Home / 211,252.35-291,528.24-121,828.35

Finding the Fourth Proportional to 211,252.35, 291,528.24 and 121,828.35

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Solution

The fourth proportional to 211,252.35, 291,528.24 and 121,828.35 is: 168,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,252.35 : 291,528.24 = 121,828.35 : x
  2. Step 2: Convert to fraction form
    211,252.35/291,528.24 = 121,828.35/x
  3. Step 3: Cross multiply
    211,252.35x = 291,528.24 × 121,828.35
  4. Step 4: Simplify right side
    211,252.35x = 35,516,402,390.82
  5. Step 5: Solve for x
    x = 35,516,402,390.82/211,252.35
  6. Step 6: Final answer
    x = 168,123.12

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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.