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Finding the Fourth Proportional to 145,455.36, 216,756.48 and 144,230.64

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Solution

The fourth proportional to 145,455.36, 216,756.48 and 144,230.64 is: 214,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,455.36 : 216,756.48 = 144,230.64 : x
  2. Step 2: Convert to fraction form
    145,455.36/216,756.48 = 144,230.64/x
  3. Step 3: Cross multiply
    145,455.36x = 216,756.48 × 144,230.64
  4. Step 4: Simplify right side
    145,455.36x = 31,262,925,834.55
  5. Step 5: Solve for x
    x = 31,262,925,834.55/145,455.36
  6. Step 6: Final answer
    x = 214,931.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.