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Finding the Fourth Proportional to 281,510.58, 388,484.81 and 152,450.07

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Solution

The fourth proportional to 281,510.58, 388,484.81 and 152,450.07 is: 210,381.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,510.58 : 388,484.81 = 152,450.07 : x
  2. Step 2: Convert to fraction form
    281,510.58/388,484.81 = 152,450.07/x
  3. Step 3: Cross multiply
    281,510.58x = 388,484.81 × 152,450.07
  4. Step 4: Simplify right side
    281,510.58x = 59,224,535,716.19
  5. Step 5: Solve for x
    x = 59,224,535,716.19/281,510.58
  6. Step 6: Final answer
    x = 210,381.21

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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.