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Finding the Fourth Proportional to 312,322.60, 468,368.70 and 101,967.40

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Solution

The fourth proportional to 312,322.60, 468,368.70 and 101,967.40 is: 152,913.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,322.60 : 468,368.70 = 101,967.40 : x
  2. Step 2: Convert to fraction form
    312,322.60/468,368.70 = 101,967.40/x
  3. Step 3: Cross multiply
    312,322.60x = 468,368.70 × 101,967.40
  4. Step 4: Simplify right side
    312,322.60x = 47,758,338,580.38
  5. Step 5: Solve for x
    x = 47,758,338,580.38/312,322.60
  6. Step 6: Final answer
    x = 152,913.49

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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.