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Finding the Fourth Proportional to 153,376.60, 230,064.90 and 142,317.40

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Solution

The fourth proportional to 153,376.60, 230,064.90 and 142,317.40 is: 213,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,376.60 : 230,064.90 = 142,317.40 : x
  2. Step 2: Convert to fraction form
    153,376.60/230,064.90 = 142,317.40/x
  3. Step 3: Cross multiply
    153,376.60x = 230,064.90 × 142,317.40
  4. Step 4: Simplify right side
    153,376.60x = 32,742,238,399.26
  5. Step 5: Solve for x
    x = 32,742,238,399.26/153,376.60
  6. Step 6: Final answer
    x = 213,476.10

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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.