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Finding the Fourth Proportional to 245,946.90, 368,933.53 and 77,480.40

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Solution

The fourth proportional to 245,946.90, 368,933.53 and 77,480.40 is: 116,224.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,946.90 : 368,933.53 = 77,480.40 : x
  2. Step 2: Convert to fraction form
    245,946.90/368,933.53 = 77,480.40/x
  3. Step 3: Cross multiply
    245,946.90x = 368,933.53 × 77,480.40
  4. Step 4: Simplify right side
    245,946.90x = 28,585,117,477.81
  5. Step 5: Solve for x
    x = 28,585,117,477.81/245,946.90
  6. Step 6: Final answer
    x = 116,224.75

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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.