Home / 210,855.40-291,027.16-145,535.94

Finding the Fourth Proportional to 210,855.40, 291,027.16 and 145,535.94

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Solution

The fourth proportional to 210,855.40, 291,027.16 and 145,535.94 is: 200,871.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,855.40 : 291,027.16 = 145,535.94 : x
  2. Step 2: Convert to fraction form
    210,855.40/291,027.16 = 145,535.94/x
  3. Step 3: Cross multiply
    210,855.40x = 291,027.16 × 145,535.94
  4. Step 4: Simplify right side
    210,855.40x = 42,354,911,296.13
  5. Step 5: Solve for x
    x = 42,354,911,296.13/210,855.40
  6. Step 6: Final answer
    x = 200,871.84

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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.