Home / 205,547.10-308,320.65-134,688.30

Finding the Fourth Proportional to 205,547.10, 308,320.65 and 134,688.30

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Solution

The fourth proportional to 205,547.10, 308,320.65 and 134,688.30 is: 202,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,547.10 : 308,320.65 = 134,688.30 : x
  2. Step 2: Convert to fraction form
    205,547.10/308,320.65 = 134,688.30/x
  3. Step 3: Cross multiply
    205,547.10x = 308,320.65 × 134,688.30
  4. Step 4: Simplify right side
    205,547.10x = 41,527,184,203.40
  5. Step 5: Solve for x
    x = 41,527,184,203.40/205,547.10
  6. Step 6: Final answer
    x = 202,032.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.