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Finding the Fourth Proportional to 281,509.07, 388,482.73 and 152,448.57

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Solution

The fourth proportional to 281,509.07, 388,482.73 and 152,448.57 is: 210,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,509.07 : 388,482.73 = 152,448.57 : x
  2. Step 2: Convert to fraction form
    281,509.07/388,482.73 = 152,448.57/x
  3. Step 3: Cross multiply
    281,509.07x = 388,482.73 × 152,448.57
  4. Step 4: Simplify right side
    281,509.07x = 59,223,636,277.07
  5. Step 5: Solve for x
    x = 59,223,636,277.07/281,509.07
  6. Step 6: Final answer
    x = 210,379.14

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1.5x scale

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.