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Finding the Fourth Proportional to 312,506.48, 468,685.08 and 134,916.32

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Solution

The fourth proportional to 312,506.48, 468,685.08 and 134,916.32 is: 202,342.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,506.48 : 468,685.08 = 134,916.32 : x
  2. Step 2: Convert to fraction form
    312,506.48/468,685.08 = 134,916.32/x
  3. Step 3: Cross multiply
    312,506.48x = 468,685.08 × 134,916.32
  4. Step 4: Simplify right side
    312,506.48x = 63,233,266,232.51
  5. Step 5: Solve for x
    x = 63,233,266,232.51/312,506.48
  6. Step 6: Final answer
    x = 202,342.26

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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.