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Finding the Fourth Proportional to 340,528.32, 510,792.16 and 91,203.52

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Solution

The fourth proportional to 340,528.32, 510,792.16 and 91,203.52 is: 136,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,528.32 : 510,792.16 = 91,203.52 : x
  2. Step 2: Convert to fraction form
    340,528.32/510,792.16 = 91,203.52/x
  3. Step 3: Cross multiply
    340,528.32x = 510,792.16 × 91,203.52
  4. Step 4: Simplify right side
    340,528.32x = 46,586,042,980.40
  5. Step 5: Solve for x
    x = 46,586,042,980.40/340,528.32
  6. Step 6: Final answer
    x = 136,805.19

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1.5x scale

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.