Home / 284,106.15-392,075.90-155,051.68

Finding the Fourth Proportional to 284,106.15, 392,075.90 and 155,051.68

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Solution

The fourth proportional to 284,106.15, 392,075.90 and 155,051.68 is: 213,976.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,106.15 : 392,075.90 = 155,051.68 : x
  2. Step 2: Convert to fraction form
    284,106.15/392,075.90 = 155,051.68/x
  3. Step 3: Cross multiply
    284,106.15x = 392,075.90 × 155,051.68
  4. Step 4: Simplify right side
    284,106.15x = 60,792,026,982.51
  5. Step 5: Solve for x
    x = 60,792,026,982.51/284,106.15
  6. Step 6: Final answer
    x = 213,976.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.