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Finding the Fourth Proportional to 243,750.63, 336,365.90 and 141,779.01

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Solution

The fourth proportional to 243,750.63, 336,365.90 and 141,779.01 is: 195,649.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,750.63 : 336,365.90 = 141,779.01 : x
  2. Step 2: Convert to fraction form
    243,750.63/336,365.90 = 141,779.01/x
  3. Step 3: Cross multiply
    243,750.63x = 336,365.90 × 141,779.01
  4. Step 4: Simplify right side
    243,750.63x = 47,689,624,299.76
  5. Step 5: Solve for x
    x = 47,689,624,299.76/243,750.63
  6. Step 6: Final answer
    x = 195,649.24

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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.