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Finding the Fourth Proportional to 291,842.60, 402,748.95 and 164,518.20

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Solution

The fourth proportional to 291,842.60, 402,748.95 and 164,518.20 is: 227,038.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,842.60 : 402,748.95 = 164,518.20 : x
  2. Step 2: Convert to fraction form
    291,842.60/402,748.95 = 164,518.20/x
  3. Step 3: Cross multiply
    291,842.60x = 402,748.95 × 164,518.20
  4. Step 4: Simplify right side
    291,842.60x = 66,259,532,305.89
  5. Step 5: Solve for x
    x = 66,259,532,305.89/291,842.60
  6. Step 6: Final answer
    x = 227,038.59

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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.