Home / 315,985.24-436,066.50-188,637.04

Finding the Fourth Proportional to 315,985.24, 436,066.50 and 188,637.04

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Solution

The fourth proportional to 315,985.24, 436,066.50 and 188,637.04 is: 260,323.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,985.24 : 436,066.50 = 188,637.04 : x
  2. Step 2: Convert to fraction form
    315,985.24/436,066.50 = 188,637.04/x
  3. Step 3: Cross multiply
    315,985.24x = 436,066.50 × 188,637.04
  4. Step 4: Simplify right side
    315,985.24x = 82,258,293,803.16
  5. Step 5: Solve for x
    x = 82,258,293,803.16/315,985.24
  6. Step 6: Final answer
    x = 260,323.22

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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.