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Finding the Fourth Proportional to 202,762.72, 279,700.32 and 117,870.40

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Solution

The fourth proportional to 202,762.72, 279,700.32 and 117,870.40 is: 162,595.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,762.72 : 279,700.32 = 117,870.40 : x
  2. Step 2: Convert to fraction form
    202,762.72/279,700.32 = 117,870.40/x
  3. Step 3: Cross multiply
    202,762.72x = 279,700.32 × 117,870.40
  4. Step 4: Simplify right side
    202,762.72x = 32,968,388,598.53
  5. Step 5: Solve for x
    x = 32,968,388,598.53/202,762.72
  6. Step 6: Final answer
    x = 162,595.91

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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.