Home / 211,330.03-291,665.34-130,783.49

Finding the Fourth Proportional to 211,330.03, 291,665.34 and 130,783.49

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Solution

The fourth proportional to 211,330.03, 291,665.34 and 130,783.49 is: 180,499.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,330.03 : 291,665.34 = 130,783.49 : x
  2. Step 2: Convert to fraction form
    211,330.03/291,665.34 = 130,783.49/x
  3. Step 3: Cross multiply
    211,330.03x = 291,665.34 × 130,783.49
  4. Step 4: Simplify right side
    211,330.03x = 38,145,011,077.24
  5. Step 5: Solve for x
    x = 38,145,011,077.24/211,330.03
  6. Step 6: Final answer
    x = 180,499.72

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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.