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Finding the Fourth Proportional to 460,038.89, 690,085.90 and 144,495.80

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Solution

The fourth proportional to 460,038.89, 690,085.90 and 144,495.80 is: 216,752.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,038.89 : 690,085.90 = 144,495.80 : x
  2. Step 2: Convert to fraction form
    460,038.89/690,085.90 = 144,495.80/x
  3. Step 3: Cross multiply
    460,038.89x = 690,085.90 × 144,495.80
  4. Step 4: Simplify right side
    460,038.89x = 99,714,513,913.63
  5. Step 5: Solve for x
    x = 99,714,513,913.63/460,038.89
  6. Step 6: Final answer
    x = 216,752.36

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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.